Stora Feldmuhle AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 137

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5439558 Print substrateAug 16, 94Aug 08, 95[D21H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6207015 Process for recovering raw materials from paper industry mechanical waste sludgeExpiredApr 15, 93Mar 27, 01[D21H]
5952091 Web printing paper coated on both sides and process for its manufactureExpiredSep 30, 96Sep 14, 99[B05D, D21H, B32B]
5795393 Apparatus for limiting the coating edge in a short dwell coaterExpiredJan 13, 97Aug 18, 98[B05C]
5769353 Method of initiating the premature replacement of a roll of materialExpiredSep 26, 96Jun 23, 98[B65H]
5753077 Web printing paper and process for producing itExpiredSep 21, 95May 19, 98[D21H]
5338405 Production of fiber pulp by impregnating the lignocellulosic material with an aqueous alcoholic SO.sub.2 solution prior to defibrationExpiredMay 18, 92Aug 16, 94[D21B]
5334449 Coated paperExpiredFeb 25, 93Aug 02, 94[B32B]
5314753 Printing paper and a process for its manufactureExpiredNov 12, 92May 24, 94[B32B]
4859650 Pressure-sensitive recording materialExpiredSep 30, 87Aug 22, 89[B41M]
4580438 Method and apparatus for testing the duplicating characteristics of pressure-sensitive duplicating sheetsExpiredApr 05, 84Apr 08, 86[G01N]
4549930 Uncoated paper web for printing and method for making and using sameExpiredApr 02, 80Oct 29, 85[D21F]
4347128 Flotation apparatus for de-inking pulp suspensionsExpiredApr 08, 81Aug 31, 82[B03D]
4331534 Method of and arrangement for the de-inking of pulp suspensionsExpiredApr 21, 80May 25, 82[D21B, B03D, D21C]
4221690 Coating composition for acceptor sheets in carbonless copyingExpiredJul 05, 78Sep 09, 80[C08L]
4191403 Donor material for carbonless copyingExpiredSep 13, 78Mar 04, 80[B41M]

Top Inventors for This Owner

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